How to build great paper airplanes and learn what makes them fly! What keeps a paper airplane in the air? How can you make a paper airplane go for a really long flight? How can you make a cool stunt plane that loops, turns, and dives at will? Learn the answers to these questions and many more! This book details not only how to design amazing paper airplanes, but also the principles of flight and how planes are able to fly. The Paper Airplane Book is full of experiments and suggestions that will allow readers to design their own airplanes while introducing them to the physics and science of flight. "Lots of information about the principles of flight and the 'hows' and 'whys' of airplane design."-- Children's Literature "The principles of flight and airplane design are elucidated in this book of entertaining experiments with paper airplanes."-- Booklist